Scuba II is designed with the same photometric sensor that they use in their professional equipment. It tests with very high accuracy the water chlorine content (free and total), alkalinity, pH and cyanuric acid content photometrically.
Scuba II comes with batteries:
20 pcs DPD No.1 tablets
10 st DPD No. 3 tablets
20 pcs Penol red tablets
10 pcs Alka-M tablets
10 pcs CyA – test tablets